Cylinder protector



Oct. 12 1926.

A. B. MUELLER CYLINDER PROTECTOR Original Filed July 5, 1923 INVENTOR v52. 3. .flL-ueICLefl WlTNESSES A'ITORNEYS Patented Get. 12, 1926.

UNITED STATES ALBERT B. MUELLER, OF BUNGE, TEXAS.

CYLINDER rno'rnc'ron.

Original application filed July 5, 1923, Serial No. 649,556. Divided and this application filed June 26,

1925. Serial No. 39,774;

This invention relates to protectors especially adapted for use in shallow and deep well cylinders or working barrels, and this application is a division of my application filed July 5, 1923, Serial No. 649,556, to which reference is made for fuller explanation of the application and advantages of the present invention.

An important object of this invention is to provide reliable means for preventing the accumulation of fallen rust, scale, sticks, etc. in the working barrel and consequently interfering with the operation of the plunger therein, the said means being located in the tubing at a point above the working barrel and being perforated or formed with a series of openings to provide a means whereby the oil or water, as the case may be, may be expeditiously pumped out of the well.

Furthermore the invention aims to provide simple means for preventing foreign matter, such as sand, from being pumped up into the working barrel and causing the cups and the interior of the working barrel to wear rapidly.

A further object of the invention is to provide a protector of the character specified which is of highly simplified construction, cheap to install and durable in use.

Other objects and advantages will be ap parent during the course of the following description.

In the accompanying drawing forming a part of this application and in which like nun'ierals are employed to designate like parts throughout the same,

Figure 1 a side elevation of the improved protector applied,

Figure 2 IS a vertical sectional view through the improved protector applied, and

Figure 3 is a detail vertical sectional view illustrating the means for securely holding the protector in a set position above the cups.

In the drawing the numeral 15 designates perforated tube which as illustrated in Figure 1 is mounted upon the sucker rod 16 and has its ends receiving upper and lower nipples 17 and 18, respectively. The nipples 17 and 18 are in turn threaded into upper andlower base members 20, the said base members being connected by means of brace rods 22. Figure 2 clearly illustrates that the 11 )per member 20 is provided with set screws which an age the brace rods and thereby securely laid the same in position.

With particular attention to Figure 3 it will be noted that the lower head member 20 is provided with a series of radial sockets for the reception of holding lugs which are engaged by cap screws 26. The inner ends of the lugs 25 are beveled so that when the cap screws 26 are advanced the lugs will be moved outwardly into engagement with the inner sides of the working barrel 2?. In this manner the protector may be securely and positively held in a desired position within the'working barrel.

A threaded collar 28 is connected to the upper head member 20 and engages a gland so as to held the same securely in position. It will be seen that the gland 29 constitutes a guide for the sucker rod 16 and also prevents falling matter from entering the protector.

The lower portion of the sucker rod 16 is provided with the usual cups 30 which have a working fit in the working barrel and on their up stroke draw a quantity of liquid through. a nipple 31. The cups 30 are carried by the usual cage 32 suspended from the sucker rod and a valve 33 is located within the cage. In summarizing it will be seen that falling rust, sticks, and the like in the tubing 34 are prevented from settling on the cups by the perforated protector tube 15 and associated elements. In this manner rapid wear on the cups and serious damage to the same is prevented.

The lower portion of the working barrel has a check valve 37 of any desired construe tion, which check valve allows the oil to en ter by way of the tube 31 but prevents the return of the same. The lower portion of the nipple 31gis providedwith a perforated strainer tube 39 which is surrounded by gauze wire 40 or the like. It is here noted that a gauze wire of any desired mesh may be employed, this feature being merely a matterof choice or discretion on the part of the operator. The lower portion of the perforated tube 39 is closed by a disk a1 confined between upper and lower fastening members &2 and 43, respectively, the upper fastening member 1-2 being threaded onto the lower portion of the tube 39.

I claim:

1. A well equipment comprising a working barrel, a perforated tube arranged therein, nipples received within the ends of the perforated tube, head members receiving the nipples and having rigid connection therewith, and rods connecting the head members. V i

2. A Well equipment comprising a Workiug barrel, a perforated tube arranged there in, nipples received Within the ends of the perforated tube head members receiving the nipples and having; rigid connection there'- With, rods connecting the head members, and means carried. by one out thehead members to anchor the same in position.

3. A well equipmentcomprising a Working barrel, a periorated tube arranged therein, nipples received Within the ends of the perforated tube, head members receiving the nipples and havingrigid connection therewith, rods connecting the head members, means carried by one of the head memhers to anchor the saline in position, and set screws carried by one of the head members and engaged with said rods.

4. A Well equipment comprising a Working barrel, a perforated tube arranged there in, nipples received Within the ends of the perforated tube, head members recein nipples and having rigid connection therewith, rods connecting the head members, means carried by one of the head members to anchor the same in position, set screws carried by one of the head members and engaged with said rods and a gland having connection with one of the head members and having a longitudinal opening to slidably receive a sucker rod.

ALBERT B. MUELLER. 

